import './Sales.html';
import '/imports/util/selectize/selectize.js';
import swal from 'sweetalert2';

let QUERY_LIMIT = 20;
let PREFIX = "Sales.";

Meteor.subscribe("products");
Session.set(PREFIX + "sortOption", "date");
Session.set(PREFIX + "showOnlyComments", false);

Tracker.autorun(function() {
	let sortOption = Session.get(PREFIX + "sortOption");
	let sort = sortOption == 'createdAt' ? {createdAt: -1} : {date: -1, createdAt: -1};
	let showOnlyComments = Session.get(PREFIX + "showOnlyComments");
	let query = _.clone(Session.get(PREFIX + 'searchQuery'));
	
	if(showOnlyComments) {
		if(!query) query = {};
		query.comment = {$exists: true};
	}
	
	Meteor.subscribe("sales", query, sort, QUERY_LIMIT, Session.get(PREFIX + 'skipCount'));
	Session.set(PREFIX + 'saleCount',  Meteor.call('getSalesCount', Session.get(PREFIX + 'searchQuery')));
});

Template.Sales.onCreated(function() {
	Session.set(PREFIX + "displayNewSale", false);
});
Template.Sales.helpers({
	displayNewSale: function() {
		return Session.get(PREFIX + "displayNewSale");
	},
	sales: function() {
		let sortOption = Session.get(PREFIX + "sortOption");
		
		return Meteor.collections.Sales.find({}, {sort: (sortOption == 'createdAt' ? {createdAt: -1} : {date: -1, createdAt: -1})});
	},
	disablePrev: function() {
		return (Session.get(PREFIX + 'skipCount') || 0) == 0;
	},
	disableNext: function() {
		return Session.get(PREFIX + 'saleCount') - (Session.get(PREFIX + 'skipCount') || 0) - QUERY_LIMIT <= 0;
	},
	editing: function() {
		let editedSale = Session.get(PREFIX + "editedSale");
		
		return editedSale == this._id;
	}
});
Template.Sales.events({
	'click .newSaleButton': function(event, template) {
		if(template.$('.newSaleButton').hasClass('active')) {
			Session.set(PREFIX + 'displayNewSale', false);
		}
		else {
			Session.set(PREFIX + 'displayNewSale', true);
			Session.set(PREFIX + "editedSale", undefined);  //Clear the edited sale so that only one editor is open at a time.
		}
		template.$('.newSaleButton').toggleClass('active');
	},
	'click .prevButton': function(event, template) {
		if(!$(event.target).hasClass('disabled'))
			Session.set(PREFIX + 'skipCount', Math.max(0, (Session.get(PREFIX + 'skipCount') || 0) - QUERY_LIMIT));
	},
	'click .nextButton': function(event, template) {
		if(!$(event.target).hasClass('disabled'))
			Session.set(PREFIX + 'skipCount', (Session.get(PREFIX + 'skipCount') || 0) + QUERY_LIMIT);
	},
	'change select[name="sortSelect"]': function(event, template) {
		Session.get(PREFIX + 'skipCount', 0);
		Session.set(PREFIX + "sortOption", $(event.target).val());
	},
	'click .showOnlyComments': function(event, template) {
		let $button = $(event.target);
		
		Session.set(PREFIX + "showOnlyComments", !$button.hasClass('on'));
		$button.toggleClass('on');
	}
});

Template.Sale.onCreated(function() {
});
Template.Sale.helpers({
	measureName: function(id) {
		return Meteor.collections.Measures.findOne({_id: id}, {fields: {name: 1}}).name;
	},
	venueName: function(id) {
		return Meteor.collections.Venues.findOne({_id: id}, {fields: {name: 1}}).name;
	},
	productName: function(id) {
		return Meteor.collections.Products.findOne({_id: id}, {fields: {name: 1}}).name;
	},
	formatDateAndWeek: function(date) {
		return moment(date).format("MM/DD/YYYY (w)");
	},
	formatDate: function(date) {
		return moment(date).format("MM/DD/YYYY");
	},
	formatPrice: function(price) {
		return price.toLocaleString("en-US", {style: 'currency', currency: 'USD', minimumFractionDigits: 2});
	},
	formatTotalPrice: function(price, amount) {
		return (price * amount).toLocaleString("en-US", {style: 'currency', currency: 'USD', minimumFractionDigits: 2});
	},
	showTotalPrice: function(amount) {
		return amount > 1;
	},
	commentClass: function() {
		return this.comment ? "hasComment" : "";
	}
});
Template.Sale.events({
	"click .actionEdit": function(event, template) {
		Session.set(PREFIX + "editedSale", this._id);
		Session.set(PREFIX + 'displayNewSale', false);  //Ensure the new sale editor is closed.
		template.$('.newSaleButton').removeClass('active');
	},
	"click .saleRemove": function(event, template) {
		let _this = this;
		swal({
			title: "Are you sure?",
			text: "This will permanently remove the sale.",
			type: "question",
			showCancelButton: true,
			confirmButtonColor: "#DD6B55",
			confirmButtonText: "Yes"
		}).then(
			function(isConfirm) {
				if(isConfirm) {
					// Meteor.collections.Sales.remove(_this._id);
					Meteor.call('deleteSale', _this._id);
				}
			},
			function(dismiss) {
				
			}
		);
	},
	"click .editComment": function(event, template) {
		let _this = this;
		
		swal({
			title: "Sale Comment",
			text: "Change the comment, or clear it to remove the comment.",
			input: "textarea",
			showCancelButton: true,
			closeOnConfirm: true,
			closeOnCancel: true,
			animation: "slide-from-top",
			inputPlaceholder: "Write a comment...",
			allowEscapeKey: true,
			inputValue: _this.comment ? _this.comment : ""
		}).then(
			function(text) {
				Meteor.call('editSaleComment', _this._id, text);
			},
			function(dismiss) {}
		);
	}
});

Template.SaleEditor.onCreated(function() {
	let _this = this;
	
	this.product = Meteor.collections.Products.findOne({_id: this.data.productId});
	this.selectedDate = new ReactiveVar(this.data.date);
	this.selectedVenue = new ReactiveVar(Meteor.collections.Venues.findOne({_id: this.data.venueId}));
	this.price = new ReactiveVar(this.data.price);
	this.amount = new ReactiveVar(this.data.amount);
});
Template.SaleEditor.onRendered(function() {
	this.$('form[name="editSaleForm"]').validator();
	this.$('[name="venue"]').buildCombo({cursor: Meteor.collections.Venues.find({}), selection: this.selectedVenue, comparator: function(a, b) {return a._id == b._id;}, textAttr: 'name', listClass: 'comboList'});
	this.$('input[name="date"]').val(moment(this.selectedDate.get()).format("YYYY-MM-DD"));
});
Template.SaleEditor.helpers({
	measureName: function(id) {
		let measure = Meteor.collections.Measures.findOne({_id: id}, {fields: {name: 1}});
		
		return measure ? measure.name : "???";
	},
	productName: function() {
		let product = Template.instance().product;
		return product ? product.name : "???";
	},
	price: function() {
		return Template.instance().price.get();
	},
	amount: function() {
		return Template.instance().amount.get();
	},
	total: function() {
		let template = Template.instance();
		return (template.price.get() * template.amount.get()).toFixed(2);
	}
});
Template.SaleEditor.events({
	'click .setDefaultPrice': function(event, template) {
		let date = template.selectedDate.get();
		let prices = template.product.prices;
		let priceData;
		let price = 0;
		
		if(prices) priceData = prices[template.data.measureId];
		
		//If this product has pricing data for the given measure, then either use the price, or the previousPrice (if there is one and the effectiveDate is after the sale date).
		if(priceData) {
			if(priceData.effectiveDate && date && moment(priceData.effectiveDate).isAfter(date))
				price = priceData.previousPrice;
			else
				price = priceData.price
		}
		
		template.price.set(price);
	},
	'change input[name="date"]': function(event, template) {
		template.selectedDate.set(moment(event.target.value, "YYYY-MM-DD").toDate());
	},
	'change .price': function(event, template) {
		template.price.set(parseFloat($(event.target).val()));
	},
	'change .amount': function(event, template) {
		template.amount.set(parseFloat($(event.target).val()));
	},
	"click .editorCancel": function(event, template) {
		Session.set(PREFIX + "editedSale", undefined);
	},
	"click .editorApply": function(event, template) {
		template.$('form[name="editSaleForm"]').data('bs.validator').validate(function(isValid) {
			if(isValid) {
				let id = template.data._id;
				let date = template.selectedDate.get();
				let venue = template.selectedVenue.get();
				let price = template.price.get();
				let amount = template.amount.get();
				
				Meteor.call("updateSale", id, date, venue._id, price, amount, function(error, result) {
					if(error) sAlert.error(error);
					else {
						sAlert.success("Sale updated.");
						Session.set(PREFIX + "editedSale", undefined);
					}
				});
			}
		});
		
		//let name = template.$("input[name='name']").val().trim();
		//let tags = template.$(".productTagsEditor").select2('data');
		//let aliases = template.$(".productAliasesEditor").select2('data');
		//let measures = template.$(".productMeasuresEditor").select2('data');
		//
		//tags = tags.map((n)=>n.id);
		//aliases = aliases.map((n)=>n.id);
		//measures = measures.map((n)=>n.id);
		//
		//if(Session.get(PREFIX + 'displayNewProduct')) {
		//	Meteor.call("createProduct", name, tags, aliases, measures, function(error, result) {
		//		if(error) sAlert.error(error);
		//		else {
		//			sAlert.success("Product created.");
		//			Session.set(PREFIX + 'displayNewProduct', false);
		//			template.parentTemplate().$('.newProductButton').removeClass('active');
		//		}
		//	});
		//}
		//else {
		//	Meteor.call("updateProduct", this._id, name, tags, aliases, measures, function(error, result) {
		//		if(error) sAlert.error(error);
		//		else {
		//			sAlert.success("Product updated.");
		//			Session.set(PREFIX + "editedProduct", undefined);
		//			template.parentTemplate().$('.newProductButton').removeClass('active');
		//		}
		//	});
		//}
	}
});

Template.SaleSearch.helpers({
	searchValue: function() {
		let searchFields = Session.get(PREFIX + 'searchFields');
		
		return (searchFields && searchFields[this.columnName]) ? searchFields[this.columnName] : '';
	}
});
Template.SaleSearch.events({
	"keyup .searchInput": _.throttle(function(event, template) {
		let searchQuery = Session.get(PREFIX + 'searchQuery') || {};
		let searchFields = Session.get(PREFIX + 'searchFields') || {};
		let searchValue = template.$('.searchInput').val();
		
		if(searchValue) {
			if(this.number) searchValue = parseFloat(searchValue);
			
			if(this.collection) {
				let ids = Meteor.collections[this.collection].find({[this.collectionQueryColumnName]: {$regex: searchValue, $options: 'i'}}, {fields: {[this.collectionResultColumnName]: 1}}).fetch();
				
				//Convert the ids to an array of ids instead of an array of objects containing an id.
				for(let i = 0; i < ids.length; i++) {ids[i] = ids[i]._id;}
				searchQuery[this.columnName] = {$in: ids};
				searchFields[this.columnName] = searchValue;
			}
			else {
				searchFields[this.columnName] = searchQuery[this.columnName] = searchValue;
			}
		}
		else {
			//Remove columns from the search query whose values are empty so we don't bother the database with them.
			delete searchQuery[this.columnName];
			delete searchFields[this.columnName];
		}
		
		Session.set(PREFIX + 'searchQuery', searchQuery);
		Session.set(PREFIX + 'searchFields', searchFields)
		Session.set(PREFIX + 'skipCount', 0);  //Reset the paging of the results.
	}, 500)
});

Template.InsertSale.onCreated(function() {
	this.selectedDate = new ReactiveVar();
	this.selectedProduct = new ReactiveVar();
	this.selectedVenue = new ReactiveVar();
});
Template.InsertSale.onRendered(function() {
	this.$('.insertSaleForm').validator();
	
	//TODO: Make the query for products reactive, by putting it inside an autorun block.
	//TODO: Fix the combo's change event firing.  It does not fire a change event when selecting an item for the first time.  It's $(input).val() call also returns the name of the thing selected instead of the selected object.
	// Note: The combo will automatically update our selection reactive variable.  No need to capture change events.
	this.$('[name="product"]').buildCombo({cursor: Meteor.collections.Products.find({$or: [{hidden: false}, {hidden: {$exists:false}}]}), selection: this.selectedProduct, textAttr: 'name', listClass: 'comboList', getClasses: function(data) {
		return (data && data.deactivated) ? "deactivated" : "";
	}});
	this.$('[name="venue"]').buildCombo({cursor: Meteor.collections.Venues.find({}), selection: this.selectedVenue, textAttr: 'name', listClass: 'comboList'});
});
Template.InsertSale.events({
	//'change input[name="product"]': function(event, template) {
	//	let selectedId = template.$('input[name="product"]').val();
	//	let selected = Meteor.collections.Products.findOne(selectedId);
	//	template.selectedProduct.set(selected);
	//},
	'change input[name="date"]': function(event, template) {
		template.selectedDate.set(moment(event.target.value, "YYYY-MM-DD").toDate());
	},
	'click input[type="submit"]': function(event, template) {
		event.preventDefault();
		template.$('.insertSaleForm').data('bs.validator').validate(function(isValid) {
			if(isValid) {
				let sales = [];
				let insertSaleMeasures = template.$(".insertSaleMeasure");
				
				let sale = {
					date: moment(template.find("[name='date']").value, "YYYY-MM-DD").toDate(),
					productId: template.selectedProduct.get()._id,
					venueId: template.selectedVenue.get()._id
				};
				
				//Iterate over the measures for the sale (based on the product chosen) and collection amounts and prices.
				for(let next = 0; next < insertSaleMeasures.length; next++) {
					let nextMeasure = $(insertSaleMeasures[next]);
					let measureId = nextMeasure.find(".measureId").val();
					let price = parseFloat(nextMeasure.find(".price").val());
					let amount = parseFloat(nextMeasure.find(".amount").val());
					
					if(amount > 0) {
						let nextSale = _.clone(sale);
						
						nextSale.measureId = measureId;
						nextSale.price = price;
						nextSale.amount = amount;
						sales.push(nextSale);
					}
				}
				
				//Iterate over the product measures that have a quantity greater than zero and add them as a sale.
				for(let index = 0; index < sales.length; index++) {
					let next = sales[index];
					//console.log("Inserting: " + JSON.stringify(next));
					Meteor.call('insertSale', next, function(error) {
						if(error) sAlert.error("Failed to insert the sale!\n" + error);
						else {
							sAlert.success("Sale Created");
							
							//Clear the measure quantity fields so the user can enter another sale without the quantities already set.
							for(let next = 0; next < insertSaleMeasures.length; next++) {
								let nextMeasure = $(insertSaleMeasures[next]);
								
								nextMeasure.find(".amount").val(0);
							}
						}
					});
				}
			}
		});
	}
});
Template.InsertSale.helpers({
	productMeasures: function() {
		let product = Template.instance().selectedProduct.get();
		let result = product ? product.measures : [];
		
		for(let i = 0; i < result.length; i++) {
			result[i] = Meteor.collections.Measures.findOne(result[i]);
		}
		
		// if(product) console.log("Found " + result.length + " measures for the product " + product.name);
		// else console.log("No product!");
		
		return result;
	},
	venues: function() {
		return Meteor.collections.Venues.find({});
	}
});

Template.InsertSaleMeasure.onCreated(function() {
	let _this = this;
	
	this.price = new ReactiveVar(0);
	this.amount = new ReactiveVar(0);
	
	Tracker.autorun(function() {
		let date = _this.parentTemplate().selectedDate.get();
		let prices = _this.parentTemplate().selectedProduct.get().prices;
		let priceData;
		let price = 0;
		
		if(prices) priceData = prices[_this.data._id];
		
		//If this product has pricing data for the given measure, then either use the price, or the previousPrice (if there is one and the effectiveDate is after the sale date).
		if(priceData) {
			if(priceData.effectiveDate && date && moment(priceData.effectiveDate).isAfter(date))
				price = priceData.previousPrice;
			else
				price = priceData.price
		}
		
		_this.price.set(price);
	});
});
Template.InsertSaleMeasure.events({
	'change .price': function(event, template) {
		template.price.set(parseFloat($(event.target).val()));
	},
	'change .amount': function(event, template) {
		template.amount.set(parseFloat($(event.target).val()));
	},
	'focus input[name="amount"],input[name="price"]': function(event, template) {
		//See http://stackoverflow.com/questions/3150275/jquery-input-select-all-on-focus
		//Handle selecting the text in the field on receipt of focus.
		let $this = $(this)
			.one('mouseup.mouseupSelect', function() {
				$this.select();
				return false;
			})
			.one('mousedown', function() {
				// compensate for untriggered 'mouseup' caused by focus via tab
				$this.off('mouseup.mouseupSelect');
			})
			.select();
	}
});
Template.InsertSaleMeasure.helpers({
	price: function() {
		return Template.instance().price.get().toFixed(2);
	},
	total: function() {
		let template = Template.instance();
		return (template.price.get() * template.amount.get()).toFixed(2);
	},
	amount: function() {
		return Template.instance().amount.get();
	}
});